I'm using an embedded Linux system - with a dedicated I2C bus - to drive a "NHD-C0220Biz-FS(RGB)-FBW-3VM" display. The Linux kernel module supplies an I2C master, so I do not have to bit bang.Using 'i2c_master_send(...)' does the addressing, clocking and so on. Most calls work but 0x39 and 0x01 don't work...0x0 -> ok0x38 -> ok0x39 -> fail0x14 -> ok...0x0c -> ok0x01 -> fail...

I also tried to make 2 byte packets {0x0, 0x?} and send them together but the same commands failed. And there is no visible reaction on the display.Any sugestins?